This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 4 |
| 4 | 7 |
| 5 | 7 |
| 6 | 170716 |
| 7 | 170926 |
| 8 | 26373004 |
| 9 | 247201983 |
| 10 | 10562770680 |
| 11 | 118345066231 |
| 12 | 54717848613610 |